.postion-center {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
}
.transform-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.enter {
  box-sizing: border-box;
  width: 100%;
  height: 100vh;
  padding: 1rem;
  transform-style: preserve-3d;
  perspective: 30000px;
  transition: background-color 0.25s ease-in-out;
}
.enter .container {
  box-sizing: border-box;
  position: relative;
  width: 100%;
  height: 100%;
  padding: 2rem;
}
.enter .angle-decorate {
  position: absolute;
  width: 2rem;
  height: 2rem;
  border-width: 0;
  border-style: solid;
  border-color: black;
  border-radius: 5px;
}
.enter .angle-decorate:nth-of-type(1) {
  border-left-width: 5px;
  border-top-width: 5px;
  left: 0px;
  top: 0px;
}
.enter .angle-decorate:nth-of-type(2) {
  border-top-width: 5px;
  border-right-width: 5px;
  top: 0px;
  right: 0px;
}
.enter .angle-decorate:nth-of-type(3) {
  border-right-width: 5px;
  border-bottom-width: 5px;
  right: 0px;
  bottom: 0px;
}
.enter .angle-decorate:nth-of-type(4) {
  border-bottom-width: 5px;
  border-left-width: 5px;
  bottom: 0px;
  left: 0px;
}
.enter main {
  padding: 0 2.5%;
  height: 100%;
  box-sizing: border-box;
}
.enter main .left-side {
  width: 47.5%;
  flex-direction: column;
  justify-content: space-between;
}
.enter main .left-side h1 {
  display: inline-block;
  text-transform: uppercase;
  font-style: italic;
  margin-bottom: 4rem;
  font-size: 1.375rem;
  font-weight: bolder;
}
.enter main .left-side h1::after {
  display: block;
  margin: 0 auto;
  margin-top: 0.5rem;
  content: "";
  width: 6rem;
  height: 3.75px;
  background-color: black;
}
.enter main .left-side .title {
  text-transform: uppercase;
  margin-bottom: 0.25rem;
  font-size: 1.125rem;
}
.enter main .left-side .title-att {
  text-transform: capitalize;
  color: #ff4545;
  margin-bottom: 0.25rem;
  font-weight: bold;
}
.enter main .left-side .content {
  color: #6a6a6a;
  font-style: italic;
  font-size: 0.9rem;
}
.enter main .left-side .enter-btn {
  width: 60%;
  color: white;
  padding: 0.75rem 0;
  text-align: center;
  background-color: black;
  border-radius: 5px;
  text-transform: uppercase;
  font-size: 1.25rem;
  margin-top: 4rem;
  cursor: pointer;
  transition: all 0.125s ease-in-out;
}
.enter main .left-side .enter-btn:hover {
  background-color: #ff4545;
}
.enter main .left-side .svg-box {
  margin-top: 2rem;
}
.enter main .left-side .svg-box .icon-gitee {
  transform: scale(1.125);
}
.enter main .left-side .svg-box svg {
  width: 2.5rem;
  height: 2.5rem;
  cursor: pointer;
}
.enter main .right-side {
  width: 50%;
  margin-left: 2.5%;
  border-radius: 5px;
  background-image: url(https://i.loli.net/2020/11/07/g1WkMCpYB7UTLQ4.jpg);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transition: all 1s;
}
.enter main .center,
.enter main .center-box {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  margin: auto;
  border-radius: 50%;
}
.enter main .center {
  background-color: white;
  width: 15rem;
  height: 15rem;
  border: 1px solid black;
  box-shadow: 0 0 2px 0 black inset;
}
.enter main .center .center-box {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 7.5rem;
  height: 7.5rem;
  font-size: 1.25rem;
  background-color: black;
  color: white;
}
.enter .window-pop-up {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
}
.enter .pop-up-box {
  padding: 1rem 2rem;
  background-color: white;
  border-radius: 5px;
  box-shadow: 0 0 2px 0 rgba(0, 0, 0, 0.568);
}
.enter .pop-up-box .qr-code {
  width: 15rem;
  height: 15rem;
  background-size: cover;
  background-position: center;
}
.enter .pop-up-box .qr-name {
  text-align: center;
  font-size: 1.125rem;
  font-weight: bold;
  margin-top: -0.5rem;
}
.enter .pop-up-box .qr-number {
  color: #adadad;
  text-align: center;
  margin: 0.25rem 0;
}
.enter .pop-up-box .qr-number span {
  text-transform: uppercase;
}
.enter .pop-up-box .qr-portrait {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background-size: cover;
  margin: 0 auto;
  transform: scale(2) translateY(-1rem);
}
.enter .pop-up-box .close-pop-up-btn {
  width: 2rem;
  height: 2rem;
  text-align: center;
  line-height: 2rem;
  font-size: 0.85rem;
  border-radius: 50%;
  background-color: black;
  color: white;
  border-width: 1px;
  border-style: solid;
  border-color: black;
  cursor: pointer;
  margin: 0.5rem auto 0;
}
.enter .pop-up-box .close-pop-up-btn:hover {
  background-color: white;
  color: black;
}
.enter .slide-enter-active,
.enter .slide-leave-active {
  transition: all 0.5s ease-in-out;
}
.enter .slide-enter-active .pop-up-box {
  transition: transform 0.5s ease-in-out, opacity 0.25s;
}
.enter .slide-leave-active .pop-up-box {
  transition: transform 0.25s ease-in-out, opacity 0.25s;
}
.enter .slide-enter .pop-up-box,
.enter .slide-leave-to .pop-up-box {
  opacity: 0;
  transform: rotate3d(1, 1.5, 0, 45deg);
}
@media (max-width: 1280px) {
  .enter main .right-side {
    background-image: url(https://i.loli.net/2020/11/07/yI78CjlF5QkRLHb.jpg);
  }
}
@media (max-width: 1024px) {
  .enter main {
    flex-direction: column-reverse;
    justify-content: flex-end;
    flex-wrap: nowrap;
    /* 左侧 */
    /* 右侧 */
  }
  .enter main .left-side {
    width: 100%;
  }
  .enter main .right-side {
    width: 100%;
    flex-grow: 1;
    margin-left: 0%;
    background-image: url(https://i.loli.net/2020/11/07/Y2DIiXRypamEktN.jpg);
  }
  .enter .center {
    display: none;
  }
}
@media (max-width: 780px) {
  .enter main .left-side h1::after {
    margin-left: 0;
  }
}
